Keyless lock.



D. W. CROCKETT.

KEYLESS LOCK.

APPLICATION FILED MAY 1s, 1913.

1,071,510, y Patented Aug.26,1913.

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KEYLBSS LOCK.

APPLIATION FILED MAY 19, 1913.

' Patented Aug. 26, 1913.

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DANIEL CROCKET'I, OF INDIANAPOLIS, INDIANA, ASS-IGNOR TOCHARLES W. MABEYAND ANDREW J'. COPPOCK, BOTH 0F INDIANAPOLIS, INDIANA.-

KnYLEss Loox.

Patented Aug. 26,1913.

Application filed May 19, 1913. Serial No. 768,649.

new and useful Improvements in Keyless Lock-s, of which the following isa specification.'

This invention relates to keyless locks,

andfin order to illustrate a lock in oper-- Aative, form Il haveselected, from a large variety of devices with which a lock of the abovecharacter may loe-employed, a gear shift lever -for motor cars to whichlsame is particularly applicable.

The object of the invention consists in the provision of a lock of theabove character wherein the use of keys is dispensed with,

and while it 'is almost im ossible for unauthorized persons tomanipulate the lock lthe same can be easily operated by persons knowingthe combination thereof.- j

A further object of the invention consists in the provision lof alock ofthe above character wherein the dials will be automatically moved fromtheir set positions preceding the act of opening the lock, so that thevpositions .of the dials, for unlocking the lock, lcan not be ascertainedby unauthorized persons.

A further object ofthe invention conslst's inthe provision of a lockofthe above character wherein the combination of the .dialsthe lockstands in a' cannot-be changed when locked position.

A further object ofthe invention consists inthe provision of a lock ofthe above' character in which the combination may be easily and quicklychanged by an authorized person, thereby decreasing-the liability of theldck being opened bya .person who may have surreptitiously secured theunlocking combination of the lock.

I accomplish the above objects of the invention by means of a keylessIlock illus' trated in the accompanying drawings, forming a part hereof,in which;

Figure 1 is a front elevation of thekeyless lock showing the slidablecover plate partially in elevation. Fig. 2 is a view' similar to Fig. 1,except that the face plate has been removed to expose the internalmechanism of the lock. Fig. 3 is a view'similar to Fig. 2, except thatthe dials have beenJ removed so as to expose the mechanism beneath. Fig.4 is a view similar to Fig. 2, except that the positions occupied by theparts are shown when the bolt is thrown.v Fig. 5 is a central vertlcalsectional view through the lock .on` the dotted line 5-5 in Fig. 2. Fig.6 is a cross section of the lock on the line 6-6 1n Fig. 1. Fig. 7 is 'across section of the lock seen from the dotted line 7 7 in Fig. 2. Fig..8 is a side elevation of the dial,

` pinion and ratchet wheel, the surrounding parts of the lock beingomitted. Fig. 9 is a top or plan view of the construction shown in Fig.8. Fig. 10 is a view showing the lock employed in connection with agearshift lever as commonly employed on motor cars. Fig. 11 is a crosssection of the gearshift lever and the bolt'of thelock on the dottedline 11-11 in Fig. 8.-

Referring to the drawings, the bolt and other .internal mechanism of thelock are" located withina suitable casing or housing comprising theparallel side members 15, end mem ers 16 and 17 and the bottom member19,- the casing being open at the .top to admit the` insertion of thelock mechanism. After the mechanism of the lock has been placed intoposition within the casing the top of the casing is closed by means of'a face-plate 20.

Located within the casing of the lock and sliding -upon the bottommember 19 thereof kis a bolt 2 2,- which bolt extends externally of the'casing through a suitable opening in the end wall 17 ofthe casing. Theopposite end of the bolt22 terminates in a stem 23 .operation of theboltV 22 is regulated and controlled by'means of a plurality of dials 28carrying suitable scales to enable saidV dials to be moved intolpredetermined positions, thereby-enabling the bolt 22 to be movedlongitudinally into and out of the keeper or other device with whichsaid bolt makes engagement. .As shown in Fig. 3 of the drawings, thebolt 22 is provided cent-rally with an aperture to allow the positioningof the posts 25 mounted on the bottom member 19. The bolt r22 isnormally heldinto contact with the bottom member 19 by means of a leafvsprin 24. The posts 25 form bearings for the dlals 28. Each of thedials 28 is rovided with a hub extension v29, (see Fig. 8)

which hubs are reduced in diameter to( form the shoulders 30 upon whichsuitable disks 33. ride. The hub extensions 29 below the, faces ofthedisks 33 are providedwiththe .pinions 34 and the ratchet' wheels 35which are secured thereto and rotate therewith.

Each of the disks 33 carries a toothed pawl change the relativepositions of the disks with respect to thedials when a new combinationor starting point, for permitting the bolt of the lock to be movedlongitudinally fory unlocking the lock, is desired. A furtherdescription of this construction will later appear. v

Each of the disks 33 is provided with a primary peripherally locatednot-ch 40 adapted to be engaged by suitable lugs 41 formed integrally onthe bolt 22. When the disks 33 have been rotated to bring said `notchesinto re istration with the lugs 41 the bolt 22 isl ree to be movedlongitudi-V nally into or out of engagement of the keeper or otherdevice with which it makes engagement.

lAs before stated, after-the mechanism has been placed in the casing ofthe lock the same is inclosed by means of a face-plate 20and said plateis provided with suitable apertures 43 to-allow the dials 28 to be eX-posed to view,` and'in operative position the surfaces of the difals28standy flush with the surface of said face-plate. The face plate 2O andthe dialsv 28 are further in closed. by lmeans of a slidable cover-plate47 which slides in suitable ways or grooves 48 in the side walls 15 ofthe'casing.

As heretofore stated, the hub extensions 29'of.the dials 28 carrypinions 34 and ratchet wheels 35. The pinions are engaged by means ofsuitable toothed pawls 37 (see.

Fig.{9), which slide in a groove 38 inthe disks. 33, and said'pawls arenormally held into engagement with the pinions 34 by means of springs45. In normal operative position, by reason of the pawls 37 the disks 33are forced to Jrotate\with the dials 28, whereby the primary notches 40in the disks `may be brought into registration with the lugs 41 on thebolt 22.

In case itis desired to change the combination for opening the lock itbecomes necessary to temporarily hold the disks 33 stationary whilethedials 28 are moved into a new position with respect tothe disks 33,thereby necessitating the dials to'be moved into a new position to bringthe primary notches 40into4 registration with the lugs to a post 52mounted on the bottom memv ber 19 of the casing. The actuator-arms 50are each provided with downwardly ex-l tending lips 53 which hook downover and engage suitable-shoulders 37*L formed on`the pawls 37, so thatlin moving the actuatorarms putwardly away from the axes of the disks 33the pawls -37 "will be disengagedv from the pinions 34. Theactuator-arms 50 are provided with suitable vertically dis-y posedpins55 which roject through suitable slots 516 in the 4ffice-plate 20,so that said actuator-arms 50 are accessible and may lbe moved from thetop of the 1face-plate 20 of the lock. It may be stated, however, thatthe actuator-arms 50 can only be moved so as to disengage the pawls 37from the pin-` ions 34 when the bolt 22 stands in a retired enlargedportions 59 on the actuator-arms' 50. By means of thisl construction thecombination of the lock can only be -changed when the lock'is open,thereby preventing disarrangement of thev combination when the lock islocked. This may be desirable for many reasons. When the bolt 22 of thelock is in its shot position the bent ends of the U-shaped member 58will be 'moved in` front of the enlargements 59 on the actuatorarms 50,whereby the latter are prevented from being moved out of engagement ofthe pawls37. The=actuator-arms 50 are normally held into engagement withthe pawls 37 by Vmeans of suitable springs 60.

The outer sliding cover-plate 47 vmay be locked in its open extendedposition rto prevent the same from being entirely removed yfrom thecasing. `This is accomplished by providing spring mounted pins 62 and63\ in the end of the face-plate 20, which pins are actuated by themovement lof the bolt v22 and movable bar 70 so as to force said pinsupwardly vinto the grooves or notches 64 and 65 within the face-plate 47when the bolt stands in .certain positions.

las

move the dials 28, I provide a movable bar Which rides upon thel bolt22, and said bar has movement `independently of the bolt, which ispermitted by means of the slots 71 and screws 72. This movable bar 70carries the pawls 7 5Which are pivotally mounted on the studs 76, thelatter being fixed on the bar 70.

When the lock is open and the bolt stands in its retracted position thefree ends of the paWls 7.5 stand engaged With the toothed edges of theratchet Wheels 35, under the iniuence of the spring 79. `VVhen-the boltis shot the paWls 75 are moved out of engagement of the ratchet WheelsThe oscillatory movement of the pawls` around the.

pins 76 is limited by means of the stops 78. Whenl the bolt 22 is movedin its outermost position, the bar 70 Will have a slightly delayedmovement caused by the resistance yoffered by the disks 33Aand thedials28.

A slight tension is applied tothe bar 70 -to move it in thedirection inwhich the bolt 22 is shot, under the Aaction of the spring 80. Thespring 80 is secured at one end to a post 81 mounted on the bar 70 andthe other `end of the spring is secured to a post 82 mounted on the bolt22, so that when the bolt 22 is moved in its outermost position thespring 80 will be extended to apply a greater vpull on the bar 70 untilthe tension of the spring overcomes the resistance offered by the disks33 and the dials 28 when the bar `70 Will start suddenly and move in thedirection in which the bolt. is shot. During this movement of the bar 70the ends of the pavvls 75 will be vsuddenly disengaged from the ratchetWheels 35, thereby causing the disks 33 and dials 28' to continue torotate a short distance, so

that the positions of the disks, in attaining' the combination, forunlocking` the lock, are. changed. This construction will prevent the-lockwfrom being opened unless by some one -Who is familiar with thecombination of the lock.

Having thus fully described my said invention, what I desire to secu/reby Letters, Patent, is-Q-` v l. A'keyless lock comprising a casing, alatch bolt moving longitudinally Within said casing, a lug on andmoving' with said` lholding said pin into the is shot, and means forexerting a tension for moving the bar in the direction in which theboltis shot.

2. Akeyless lock comprising a casing, a latch-bolt moving longitudinallyWithin the casing, arrangedV in advance of said bolt, means for mountingsaid dial, a disk Wheel, provided With a peripheral notch adapted toreceivevv the lug on the latch-bolt, carried by said dial, a pinionmoving With saidV dial, a' paWl carried by said disk to engage thepinion,` means for normally holding said paWl into engagement with saiddisk, an operative lever for moving vsaid paWl out of engagement of saidpinion, means on said a lug on said bolt, a revoluble dial operativelever extending above the face of the lock to permit the pavvl to beoperated externally of the lock when the lug engages a notch in thedisk, and means moving With the latch-bolt for arresting the movement ofthe operative lever when the bolt is shot.V

3'. A keyless lock comprising a casing, a latch-bar movinglongitudinally Within the casing, means for longitudinallyamoving saidlatch-bolt, a 4cover-plate slidingly ar` ranged in the casing andprovided With a recess 1n its under surface, a pm arranged in the end-Wall ,of the casing, and means for` normally holding said'lpin againstthe face of said latch-bolt.

4f. A keyless lock comprising a casing, a

latch-bolt moving longitudinally vWithinsaid casing,` means forlongitudinally moving said latch-bolt, a'movable bar carried by saidlatch-bolt, a pin arranged'in the end Wall of said casing, and means fornormally said movable bar.

5. A keyless lock comprising a'casing, a latch -jbolt movinglongitudinally Within said casing, a lug on said latch-bolt, a dialarranged in advance of said latch-bolt, means for mounting said dial, adi'sk provided With a peripheral notch carriedby said dial, a ratchetWheel moving With said dial, a movable bar arranged on said latchbolt,a' pawl on said movable bar 'to engage said` ratchet Wheel, means fornormally' holding said paWlr inwardly into the path of the ratchetWheel, and means for limiting said inward travel of saidpawl.

In Witness whereof, I,- have hereunto set my hand vand seal atIndianapolis, Indiana, this, 19 day of April, A. D. one thousand ninehundred.. and thirteen.

DANIEL W. oRooKETT. [1.. 5.]

Witnesses: l

F. W. WoERNER,-, Iv. L. LARsoN.`

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